[dpdk-dev] [PATCH v1] afpacket: fix critical issue reported by klocwork
Cunming Liang
cunming.liang at intel.com
Thu Feb 12 10:08:09 CET 2015
Klocwork report 'req' might be used uninitialized.
In some cases it can 'goto error' when '*internals' not been set.
The result is unexpected checking the value of '*internals'.
Signed-off-by: Cunming Liang <cunming.liang at intel.com>
---
lib/librte_pmd_af_packet/rte_eth_af_packet.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/librte_pmd_af_packet/rte_eth_af_packet.c b/lib/librte_pmd_af_packet/rte_eth_af_packet.c
index 1ffe1cd..185607d 100644
--- a/lib/librte_pmd_af_packet/rte_eth_af_packet.c
+++ b/lib/librte_pmd_af_packet/rte_eth_af_packet.c
@@ -439,13 +439,15 @@ rte_pmd_init_internals(const char *name,
size_t ifnamelen;
unsigned k_idx;
struct sockaddr_ll sockaddr;
- struct tpacket_req *req;
+ struct tpacket_req *req = NULL;
struct pkt_rx_queue *rx_queue;
struct pkt_tx_queue *tx_queue;
int rc, qsockfd, tpver, discard;
unsigned int i, q, rdsize;
int fanout_arg __rte_unused, bypass __rte_unused;
+ *internals = NULL;
+
for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
pair = &kvlist->pairs[k_idx];
if (strstr(pair->key, ETH_AF_PACKET_IFACE_ARG) != NULL)
--
1.8.1.4
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